Marian Diamond: Marian Diamond. Actress: The Avengers. Marian Diamond was born on 17 December 1936 in London, England, UK. She is an actress, known for The Avengers (1961), Detective (1964) and Sherlock Holmes (1964).
Known For: The Avengers (Jessy), Detective (Ethel Le NeveJulia Stoner(as Marion Diamond)), Sherlock Holmes (Julia Stoner(as Marion Diamond)), The Idiot (Alexandra)